Force-feed lubricator.



C. W. MANZEL'.

FORGE FEED LUBRICATOR.

APPLIUATION FILED SEPT. 25, 1909.4

1,069,450.A Patented Aug. 5,1913.

3 SHEETS-SHEET 1.

C. W. MANZBL.

FORCE FEED LUBRIGATOR.

APPLICATION FILED SEPT. 25, 1909. 1,069,453@ Patented Aug.5,1913.

3 SHEETS-SHEET 2.

l l ..1 l L C. W. MANZEL.

FORGE FEED LUBRIGATOR.

APPLIGAToN FILED s511125. 1909.

Pajsented Aug'. 5, 1913.

3 SHEETS-SHEET 3.

*if *wifey-ifm; e a v -wsmigfm iiiiiiiiiiiil simili pid@ i., @id .idee/.E0

` seems-seep Lesessseeie.

Patented Aug. 5, i913.

ippleatimi ld September g 19538. l,Serial/No. 519,528.

vToY "all fwfimfz'' main comers ide it known that i; GiiAiieEsVV.-MANZEL, zr ei-iizenof the United Stetes,' residing et Bniielo, 'in tlie'eeimty of lifrie and State of `New "forli, have invented e new and use- 'fulimproremeiitiri Forceieed Lubricetors,

pumps arranged sideby yside iii en o'il reservoirand controlled by el posted' Valve-shaft common to the several( pumps.

Une'oi" the objeotsof ithe inventionI is to simplify the constmctionand` reduce lie cost of thistypeo lubrieetors. b

Additional' objeets arer 'to provide the pumps with simple .and `convenient meansv for adjusting the stroke of die pumppistous to feed-e greater or lessquaiitity-o lubricant, as desired, and to improve' the construction 'of tile duioriczitori in 'other respects.

In the accompanying drawings `consisting of three sheets? Figure l is e. sectional ele- Vation of the lubrioetor. Figa 2 is e horizon'tnl section on line 2-2,' Fig. 1. Figs. 3, 4iend 5 :1re transverse sections on the `corre` spondingly numbered lines in Fig. i. Fig. G is e fragmentary horizontal section on line 6 6, Fig. 3. Fig. i! is e 'transverse section on line 7 7, Fig. l, showing e diiierent posi tion of' the valve-shaft. Fig. 8' is e. cross section' of one oitiie pumps, lshowing 'the piston-reterding ring. Fig. 9 e erossseetion of one oil 'the pisteii-sdiusting buttons and thimbles. Fig'. 1G is a transverse section on iine lik-'10, Fig. l. Fig. Fi is a fragmentary sectional elevation of one ,of the pumps. showingy e modified construction of the Valye-slieit. Fig. l2 is e, transverse sec- 'the spout ends te vertical slides D guided in grooved hangers or brackets@1 Vsecured at their upper ends' to the cover: of the reservoir. The' Cross head is reciproceted by rotary cams E the. grooves of which receive rollers e -eerried' by the slides D, these cams being secured toe horizontal Valve-shaft- F which is driven by any suitable means. ini the preferred eoiisbruotion shown, the shaft. has aworm wheelf F1 which meshes with e Worm l1 mount-eden e driving shaft F3 Which receives power froml any suiteioiev soupce.

Each pump piston is externally screw threaded et its upper end 1to'receive an internally-'threaded sleeve orl thimole g, the lower endo" which formsfa sop adapted tov be encountered by the cressfhead. 'The letter reciprocates the piston ey striking the'lowefr end of itsV slot 0nthe downward' stroke of tinelieedand' .by-stfsiking the lower end of the thimble or stopv g. on its upward stroke. By changing the distance -between ytile thimble siedtlie lower*'epdxv O- the Pisten-slot, the cross-hesdiias moreorA less lost motion reletive -to the piston, thus increasing or reducing the stroiefof the piston and correspondingly 4regulating the quantity' 0f- Voil deiivered .by-'the pump. l

In the eonstruotionfsliown. -the adjustable thimloles extend through the cover of the res-I ervoirand are inclosedby a sight-feed chambei' lThey :ire-'adjusted on the pistons by rota-ry knobs or buttons I' passing through` the top of seid chamber endiieving' enguler Shanks which enter corresponding openings in the eiosed tops o? the thimioles, whereby time` letterale compelled to turn with the buttons end' at vtire seme. time permitted to move Verticellytiiereoii.

'At the-lower end of eeeh pump cylinder is e valve cese J which is preferably integrill "therewith, ille several eases reoeivin the common rotary velfve or veiveeheft Communicating with diii'ereiit sides of each velef'e `case are the inletJ and' dsciierge conduits llc, icl oif'tlie corresponding pump and 'the direoseid return conduits k2, 7c3 .of the cerrespoiidiiig t feed, device. The latter `preilereiiiy comprises e. spout L at the upper eilid of lle direct conduitcand a cup IL1 ai t'lie upper? of the return conduit, visible through the trans parent pme oi? the sight-feed chamber H. The severei'eoiiduits Z5; Zal, fla* and k3 of each velfve cese sie preiferebly arranged in the same plane transversely of the case, as best shown in Figs. 1 and 3, the inlet conduit 7c communicating with the oil reservoir and boing arranged opposite the direct sight feed conduit 7a2, while the sight-feed return conduit 7f3 and the pump discharge conduit 7c1 are arranged in similar opposing relation.

1V ithin each valve-case the valve shaft F is provided with a peripheral longitudinal port m one end of which is arranged to register successively withv the several conduits 7c, 7a2, 7;? and k1, in the o-rder named. 'The other end of said port communicates in all operative positions thereof with a port or conduit n which in turn communicates with the corresponding pump cylinder by a passage al in the bottom of the latter, as shown in Fig. 7. By the rotation of the valve shaft, the pump cylinder is thus successively connected with the reservoir A through the inlet conduit 7c.; sight feed conduits 7a2, 7c3 and final discharge conduit/c1, the oil being drawn from the reservoir into the pump cylinder on the firstI upward stroke of the piston, forced through the directJ sight-feed conduit 7a2 on its downward stroke, again drawn into the pump cylinder on the second upward stroke of the piston, and finally expelled through the discharge conduit 7a4 to the part to be lubricated, on the nent downward stroke ofthe piston.

As shown in Fig. 6, the connect-ing port n of each valve case is offset or arranged out of line with the adjacent ends of the several conduits 7c, 701, 7a2 and 7c3 and preferably consists of a groove or channel formed in the inner side of the valve case concentrically with the valve-shaft and of suthcient length to extend around the portions of the case to which said several conduits are connected, as seen in Figa?. If desired, this connecting groove or port may be formed in the valveshaft instead of in the valve-case, as shown at'av2 in Figs. 11 and 12, the operation of the' lubricator beinr: Jrhe same in both cases.

The cams E are so shaped as to move the pistons upward when the valve-ports m register with the inlet conduit 7c and the return sight feed conduit 7c3, and to move them downward when said ports register with the direct sight-feed conduit 7a2 and pump discharge conduit 7x21, the cams having suitable dwells which allow the pistons to remain at rest during the intervals that said valve ports break register with said several conduits.

YWhen a minute feeding of the lubricant is required, it is desirable that the pump-pistons should not be free to descend by gravity independently of the cross head C during its movement, otherwise an excessive quantity of oil will be delivered by the pumps. To prevent this, each piston is provided with a retarding device preferably corfsisting of a split elastic ring o seated in Localice the valve-shaft have a certain amount of` lead, z'. c., they begin to register with the conduits connected with the valve-case before the pistons begin their forcing stroke. lt follows that in case the valve-shaft is turned backward by the'reversal of the engine or motor which drives the lubricator pumps, the ports of the valve-shaft will be thrown out'of register with said conduits during the forcing stroke of the pistons, blocking the latter and rendering the cams E or other parts of the lubricator liable to be broken. To obviate this danger, one of the power transmitting w heels between the driving shaft and the valve-shaft is connected with its shaft by a clutch which permits it to turn backward independently of the shaft when the motor is reversed, so as not t0 transmit such motion to the valve-shaft'. In the preferred construction shown, Fig. 5, the

clutch consists of a spring-pressed ratchetv pawl 77 sliding in a transverse socket p1 in .the valve-shaft .and bearing normally with its abrupt face against the corresponding face of a recess g in the bore of the worm wheel F1. This pawl is pressed outward by its spring.

The sight-feed device as well as the driving mechanism ofthe pumps and other parts of the lubricator may be modified without departing from the spirit of the invention, and-l do not therefore wish to be limitedl to the particular construction herein shown and described.

I claim as my invention:

1. In a force-feed lubricator, the combina.

tion of a reservoir, a pump having inlet and discharge conduits, a sight-feed device having direct and return conduits connecting it with the pump, a controlling valve having a port arranged to register successively with said inlet conduit, sight feed conduit-s and discharge conduit, and a conduit connecting the pump cylinder with said valve-port in all operative positions of the latter. p

2. In a force-feed lubricator, the combination of a reservoir, a pump having inlet and discharge conduits, a sight-feed device having direct and return conduits connecting it with the pump, a rotary valve having a port arranged to register successively with said inletv conduit, sight feed conduits and discharge-conduit, and a conduit connecting the pump cylinder with said valve-port in all operative positions of-t-he latter.

3. In a force-feed lubricator, the'combi-V nation of a reservoir, a sight feed device, a pump, a valve-case connected with the pump and having pump inlet and discharge C011- iool duits and direct and return conduits connecting it with the sight-i`eed device, and a rotary valve in said case having a single port arranged to register successively 'with said several conduits, one of the elements of the valve mechanisni-the valve and -case having a port connecting the pump cylinder With said valveport, in all positions in which the latter registers Wit-h one of said conduits;

4f. In a force-feed lubrieator, the combination of a Ireservoir, a sight feed device, a pump, a valve-case connected With the pump and "having ump inlet and discharge conduits and direct and return conduits connecting it with the sight-feed device, and a rotary valve in said case having a single port arranged to register successively With said several conduits, the valve-case .hav-l ing a port connecting.the pump cylinder with said valve-port in all positidns in which the latter registers with one of said conduits.

5. In a force-feed lubricator, the/combination of a reservoir, a sight feed device, a pump, avalve-case connected with the pump and having pump inlet and discharge conduits and direct and return conduits connecting it with the sight-feed device, and a rot-aryvalve in said case'having a single port arranged to register successively with said several conduits, the valve-case having in its inner side a channel arranged concentrically with the valve and extending' along the several points at which said conduits join the valve case, said channel connecting the pumpcylinder with said valveport in all operative positions of the latter.

6. In a force-feed lubricator, the combination of a reservoir, a pump, a sight-feed device, a valveycase connected with the pump-cylinder `and having a pump-inlet, a sight feed inlet, a sight-feed' outlet and a pump outlet arranged on different' sides thereof but in line with one another, a rotary. valve in said ca'se having a port arranged to register successively With said several inlets and outlets, and a conduit connecting said valve-port With the pump cylinder in all operative positions;y thereof and arranged lout of line with said inlets and outlets.l

7 In a force-feed lubricator, the combination of areservoir, a pump, al sight-feed device, ya valve-case connected with the pump-.cylinder and having a pump-inlet, a sight feed inlet, a sight-feed outlet and a pump 'outlet arranged on diilerent sides thereof but in line with one another, and a rotary valvel in said case havinga port arranged to register successively with said several inlets and outlets, the valve-case having in its inner side a channel arranged concentrically with said valve and connecting said valve-port with the pump cylinder in all operative positions thereof, said concen` tric port being out of line with' said inlets `and outlets.

8. In a force-feed lubrlcator, the combination of a pump cylinder, a screw threaded piston arranged therein and having a longitudinal slot, an actuatinv head arranged in said slot, a screw threaded thimble engaging the iston above said head and having an angu ar opening Iin its top, and a rotary adjusting button external to the lubricator having an angular shank Which engages said thimble-o en ing.

fitness my iiand this 22d day of September,'l909.

CHARLES W. MANZEL.

Witnesses:

' C. F. GEYER,

E. M. GRAHAM 

